AceShowbiz - Ed Sheeran and Debra Messing are among the stars getting into the Red Nose Day spirit early by showing off new T-shirts Victoria Beckham has designed for America's charity telethon.

Ahead of the fourth annual Red Nose Day on Thursday, May 24, Beckham has created a special Spice Girls-themed shirt to promote the message of "Girl Power" around the world, and Sheeran has posted a photo of himself wearing it online.

The T-shirt features the recently reunited girl group donning red clown noses.

Ed took to Instagram on Wednesday and posted a shot of himself wearing the T-shirt, which fans can buy to support the cause.

The "Shape of You" singer also joked about watching Spice World: The Movie "on repeat for 24 hours" to mark America's Red Nose Day.

Messing and actress Jodie Sweetin also shared photos of themselves wearing Beckham's T-shirt.

Ello folks. Victoria Beckham designed this T shirt for @rednosedayusa, you can buy one at omaze.com/spice and two things will happen - Children in poverty all over the world will get support, and I will watch Spice World the movie on repeat for 24 hours, coz why not. Donate away, love you all xx

A post shared by Ed Sheeran (@teddysphotos) on May 23, 2018 at 7:22am PDT

The three-hour Red Nose Day broadcast will air live from Rockefeller Plaza in New York on Thursday night.